Means for connecting metallic fittings to glass



(No Model.)

0. E. & J'. P. GREEN.

MEANS FOR commonw- MBTALLIG FITTINGS T0 GLASS, CHINA, 03 EARTHENWARE.

No. 499,918, Patented June'ZO, 1893.

Fzgl 3 UNITED STATES I PATENT OFFICE.

OSCAR E. GREEN AND JOHN F. GREEN, OF BALTIMORE, MARYLAND.

MEANS FOR CONNECTINGMETALLIC FITTINGS T0 GLASS, CHINA, 0R EARTHENWARE.

SPECIFICATION forming part of Letters Patent No. 499,918, dated JuneQO, 1893.

Application tiled March 22, 18 9 3- T0 00% whom it may con'cern:

Be it known that we, OSCAR E. GREEN and JOHN F. GREEN, of the city of Baltimore and State of Maryland, have invented certain Improvements in Means for Connecting Metallic Fittings to Glass, China, and Earthenware, of which the following is a specification.

This invention relates to improved means for connecting burner collars of lamps to the glass reservoirs, the metallic bases of hinged lids to pitchers, and in various other articles to secure a thin metal shell, to a rigid neck, as will hereinafter fully appear.

' In the further description of the said invention which follows, reference is made to the accompanying drawings forming a part hereof, and in whicht Figure 1 is a central section of a lamp in which the collar is secu ged to the neck of the glass reservoir in accordance with the present invention. Fig. 2 is a transverse section of Fig. 1, taken on the dotted line 0c r. Fig. 3 is a section similar to Fig. 1, except that the connection between the collar and lamp neck is not completed, as will hereinafter appear. Fig. 4 is a perspective view of a strip of sheet lead used in forming'the connection. Figs. 5 to 7, inclusive, illustrate modifications in the invention hereinafter described.

Referring now to Figs. 1, 2, 3.and 4, A is the neck of an ordinary glass lamp, and B the collar for the burner, which latter device is not shown. The interior threaded flange a of the collar projects within the neck A. The neck A is provided with one or more exterior projections d of any suitable shape of cross section. In the present case, the neck has two projections (Z, and they are circular in cross section. I

D D are strips of sheet lead bent into the form of a segment of a circle, so as to fit around the neck B, and they are perforated lead segments.

that the collar rests against a compressible Serial No. 467,172. (No model.)

material, which, owing to the projections d, cannot turn independently of the lamp neck, and to secure the collar so that it cannot be pulled off, it is only necessary to indent the collar or force a portion of it into the strips,

of lead. This indentation is best effected by revolving the lamp reservoir in a machine similar to a lathe and holding against the collar a suitable tool which grooves the collar and presses the annular indentations thereby formed, into the lead strips, as shown in Fig. 1. Fig. 3 shows the collar in position and before this indentation. To prevent the collar from turning on the lead strips a depression f, shown in Fig. 2, may be effected in addition to the annular grooves, by means of a punch.

In Figs. 5 and 6 instead of the collar having projections, cavities are formed in the neck of the lamp and strips of lead inserted in ,them.

In Fig. 7 one cavity is formed in the neck, and a single piece of lead bent around the neck with its ends turned in and made to enter the cavity.

It is evident that a great number of other modifications may be made, without departing from the spirit of the invention, which aims to effect a connection between a sheet metal collar and the neck of a lamp, pitcher or similar vessel, by placing between the parts a compressible body and indenting the collar or pressing the same into the said com pressible body, which by preference consists of lead, but which may consist of any other material adapted for the purpose.

We claim as our invention- 7 1. The method of securing a sheet metal collar to the neck of a vessel, herein described, which consists in inserting between the collar and neck a compressible body and indenting the collar or pressing a portion of the same into the said compressible body, substantially as specified.

2. In combination with the neck of a lamp, or other vessel, and a collar placed over the same, a compressible strip interposed between the collar and neck into which a portion of the said collar is indented or pressed, snbclosed in upon the said substance, substanstantially as specified. tially as specified.

3. In combination with the neck of a vesi t se1,a collar and one or more strips of some t compressible substance secured against turning independently of the neck, and a sheet Witnesses:

metal collar placed over the said: compressij WM. T. HOWARD, ble substance Witlra portion of its surface GEO. E. TAYLOR. 

